I agree, if you don't wheel it then you can prolly get by without crossover. If you wheel it you will def want crossover. FYI I am selling my 3" dana 60 steering block and 2" drop draglink if you need to at least get it on the road quick for a cheaper price. I'd take $55 for the block/studs/etc and would like $100 for the draglink. I also have a dodge steering arm that is taller then the stock chevy arm. I've heard of people using this to gain some hieght- $40. My current set up with these parts (except dodge arm) is below. or 165 for it all plus shipping.
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The drop draglink from the side with the 1/2 ton axles.